Vapor moistener



Sept. 3, 192 9 0, T. NESBITT 1,726,916

VAPOR MOISTENER Filed March 5, 1927 2 Sheets-Sheet 1 G g. l.

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VAPOR MOI STENER Filed March 5, 1927 2 Sheets-Sheet 2 M'zneases Patented Sept. 3, 1929.

hA'lENT FFICE.

OLIVER T. NESBITT, 01E

KALESPELL, MONTANA.

. VAPOR MOISTENER.

Application filed March 5,

This invention relates to air moistener attachments for internal combustion engines.

It is a well known fact that the presence of a certain percentage of moisture in the explosive charge of an internal combustion engine is of great advantage and therefore the present invention has as its primary object to provide a simple attachment which may be readily installed in connection with of the standard carbureters and which will automatically supply to the explosive mixture a percentage of moisture in ratio to the intake suction of the engine, the invention contemplating an attachment for this purpose which will be entirely automatic in its operation and require no ad justment or other attention except the replenishment of water from time to time as it is consumed.

The invention has as a further object to provide an attachment which will supply moisture to the explosive mixture of an in ternal combustion engine in such proportion as to insure more perfect combustion of the explosive charge, thus minimizing the accumulation of carbon and the odor of incompletely burned gases, the supply of moisture serving to minimize the accumulation of carbon and tending to obviate fouling of the cylinders, valves and spark plugs, with accumulations of carbon, thus likewise reducing the expense incident to cleaning out of the carbon and the grinding of valves and replacement of spark plugs.

Another object of the invention is to provide an attachment for the purpose stated which will be devoid of moving parts so that there can be no disarrangement of any of the parts which would otherwise necessitate adjustment and repairs.

In the accompanying drawings:

Figure l is a view in side elevation of the moistener attachment embodying the invention, installed;

Figure 2 is top plan view of the moistener attachment, installed;

Figure 3 is a vertical transverse sectional view through the attachment;

Figure d is a vertical front-to-rear sectional view of the attachment, taken at a plane at right-angles to the plane of Fig ure 8;

Figure 5 is ahorizontal sectional view through the attachment taken substantially 1927. Serial No. 173,189.

on the line 55 of Figure 8, looking in a downward direction.

The attachment embodying the invention is designed for installation bQQWGGIl the carbureter of the engine which is indicated by the numeral 1 and the intake manifold which is indicated by the numeral 2, these parts being provided with the usual connectmgflanges 3 and l respectively which are m "y connected to each other by bolts 5.

lie attachment comprises a reservoir 6 which is preferably of integral construction and of the cylindrical form shown in the drawings and which is provided with a removable cover 7 preferably threaded onto the top of this reservoir as at 8.

Removal of the cover 7 will of course permit the introduction of water into the reservoir and a gasket 9 is preferably interposed between the upper end of the reservoir and the cover so as to prevent any entrance of air. A drain valve 10 is preferably arranged at the bottom of the reservoir so that water may be drained from the reservoir and the reservoir flushed in the event of tl e accumulation of sediment.

At its lower end the reservoir 6 is provided with a neck 11 which is preferablv fiat-sided and terminates in a flat-sided body 12 of the same marginal contour and dimensions as the flanges 3 and at, and in the installation of the attachment the said body 12 is disposed between the flanges 3 and 4 and the bolts 5 are secured through these and through openings 13 which are formed in the body 12, suitable gasket-s being provided as usual between the opposed suri hces of the parts. The body 12 is provided with an opening 14 which is in registration with the openings presentin the flanges 3 and 4 to provide for the passage of the explosive mixture from the carbureter to the intake manifold. The neck 11 and .body 12 are formed with a small duct 15 which, at one end, opens into the reservoir 6 at the bot tom thereof and at its other end opens through the wall of the opening l l, and the first mentioned end of the duct is somewhat enlarged and threaded as at 16 to accommodate the lower end of an intake tube 17 which is in this manner supported in upright position within the reservoir 6 at one side thereof, the upper end of the tube terminating close to the cover 7 of the reservoir and being preferably flattened as at 18 so that its intake orifice is somewhat restricted thus preventing the entrance of any objectionable volume of water, into the tube and yet in no way restricting the entrance of water vapor.

In order that air may be admitted to the reservoir 6 an air intake opening 19 is formed preferably centrally, within thecover 7.

In the operation of the engine in connection with which the attachment is installed, the successive creation of suction in the intake manifold 2 will result in air being drawn forcibly into the reservoir 6 through the air inlet opening 19 and the air will in fact enter the reservoir in a jet and strike the water in the reservoir. This air, impregnated with moisture by its contact with the water, will be immediately drawn through the tube 17 and duct 15 and become mixed with the explosive mixture which has been drawn from the carburetor. In this manner, the explosive charge drawn through the intake manifold is impregnated with moisture. It will be evident that the op eration of the attachment is entirely automatic and that the volume of air induced through the air intake opening 19 and subsequently mixed with the explosive charges drawn in through the intake manifold will be regulated automatically in ratio to the suction force created in the intake manifold.

Having thus described my invention, what I claim is:

1. An air moistening attachment for in ternal combustion engines, comprising a reservoir for the moistening fluid having an extension for interposition in the intake line of an internal combustion engine and provided with a vapor conducting duct, the reservoir having an air intake in its upper portion, and a pipe communication at its lower end with the said duct and at its upper end communicating with the interior of the reservoir at the upper portion thereof.

2. An air moistener for internal combustion engines, comprising a reservoir for the moistening fluid having a closure provided with an air intake, a neck extending from tl e bottom of the reservoir and adapted for support between the carburetor outlet and the intake manifold inlet and having an opening for the passage of the explosive charge, the said neck having a vapor conducting passageway communicating at one end with the opening and opening at its other end through the lower portion of the said reservoir, and an intake tube in communication at its lower end with the last mentioned end of the passage way and at its upper end communicating with the reservoir near the top thereof.

8. An air moistener for internal combustion engines, comprising a reservoir for the moistening fluid having an air intake in its upper portion, a neck extending from the bottom of the reservoir and adapted for support between the carburetor outlet and the intake manifold inlet and having an opening for the passage of the explosive charge, the said neck having a vapor conducting passage-way communicating atone end with the opening and opening at its other end through the lower portion of the said reservoir and an intake tube in communication at its lower end with the last mentioned end of the passage-way and at its upper end communicating with the reservoir near the top thereof, the upper end of the tube being flattened to provide a transverse restricted orifice in communication with the bore of the tube.

In testimony whereof I affix my signature.

OLIVER T. NESBITT. 

